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Full Discussion: File Compare and Create New File with Diff
Top Forums UNIX for Advanced & Expert Users File Compare and Create New File with Diff Post 302101982 by Perderabo on Saturday 6th of January 2007 07:47:03 PM
Old 01-06-2007
guiguy, I just closed a duplicate thread and I see that vino had to edit your post to remove your email address. Please read the rules:

(4) Do not 'bump up' questions if they are not answered promptly. No duplicate or cross-posting and do not report a post where your goal is to get an answer more quickly.

(10) Don't post your email address and ask for an email reply. The forums are for the benefit of all, so all Q&A should take place in the forums.

As for your question, I copied your data into files which I named file_A and file_B. Then I tried:
Code:
$ comm -13 file_A file_B
"00004200125","JOHN","SMITH",,,"1944-06-03",
"00004200130","JOHN","SMITH",,,"1944-06-03",
"00004202307","JOHN","SMITH",,,"1944-06-03",
$
$

The man page is clear that comm -13 is what you need. You were suppressing the wrong column. You tried:
comm -23
which was wrong. There are only two other ways to print a single column:
comm -13
comm -12

Why not try them before you give up?
 

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LEARN ABOUT CENTOS

file::homedir::unix

File::HomeDir::Unix(3)					User Contributed Perl Documentation				    File::HomeDir::Unix(3)

NAME

       File::HomeDir::Unix - Find your home and other directories on legacy Unix

SYNOPSIS

	 use File::HomeDir;

	 # Find directories for the current user
	 $home	  = File::HomeDir->my_home;	   # /home/mylogin
	 $desktop = File::HomeDir->my_desktop;	   # All of these will...
	 $docs	  = File::HomeDir->my_documents;   # ...default to home...
	 $music   = File::HomeDir->my_music;	   # ...directory
	 $pics	  = File::HomeDir->my_pictures;    #
	 $videos  = File::HomeDir->my_videos;	   #
	 $data	  = File::HomeDir->my_data;	   #

DESCRIPTION

       This module provides implementations for determining common user directories.  In normal usage this module will always be used via
       File::HomeDir.

SUPPORT

       See the support section the main File::HomeDir module.

AUTHORS

       Adam Kennedy <adamk@cpan.org>

       Sean M. Burke <sburke@cpan.org>

SEE ALSO

       File::HomeDir, File::HomeDir::Win32 (legacy)

COPYRIGHT

       Copyright 2005 - 2011 Adam Kennedy.

       Some parts copyright 2000 Sean M. Burke.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included with this module.

perl v5.16.3							    2012-10-19						    File::HomeDir::Unix(3)
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